Pouncing machine



NOV 22, 1938- P. scHuL'rzl-z v 2,137,25

PoUNcING MACHINE Filed June 22,l 1936 4 Sheets-Sheet l v "lNvENToRBYPauZ .Schultze @/Q'MLL/ @awe ATTORNEYS Noir. 22, 1938. P.. sczHuLTzE2,137,250

- POUNC'ING MACHINE Filed June 22, 1936 n 4 Sheets-Sheet 2 INVENTOR geulSchulz www @MMQ i ATTORNEYS Nov. 22, 1938. P, sHULTzE PoUNcING MACHINEFiled Julie 22, 1936 4 Sheets-Sheet 5 n v ATTORNEYS Nov. 22, 1938. P.scHuL-rzE Y POUNCING MACHINE FiledA June 22, 1956 4 Sheets-Sheet 4INVENToR Paul Schulze ATTORNEYS Patented Nov. 22, 1938 PATENT OFFICEPOUNCIKNG MACHINE Paul Schultze, VRose Hill, Danbury, Conn., as-

signor to John C. Doran, doing business as Doran Brothers, Incorporated,Danbury, Conn.

Application June 22, 193,6, Serial No.` 86,484, c

14 Claims.

This invention relates to a machine for pouncing or nishing hat bodies.

` One of the objects Vof thisy invention is to provide a machine forfinishing hat bodies which is simple in construction, efficient inoperation and sturdy and durable under conditions of rigorous use.Another object is to provide a machine of the above nature which may beefficiently operated by unskilled labor. machine of the above naturewherein several yof the operating parts are actuated hydraulically.Other objects will be in part apparent and in part pointedout'hereinafter. f

The invention accordingly consists in the features of construction,combinations Vof elements, and arrangements of partsas will beexemplified in the structure to be hereinafter described and the scopeof the application ofwhich will be indicated in the following claims.

In the accompanying drawings in which is shown one of the variousembodiments of my invention,

VFigure 1 is an elevation of one side of my machine;

Figure 2 is an elevation of the other side of my machine; Y

Figure 3 is an enlarged front elevation of the pouncing tool assembly ofthe machine a portion thereof being shown in section;

Figure 4 is a sectional elevation taken along the line 4 4 of Figure 3;

Figure5 is an enlarged perspective View" of the feeding mechanism for`the pouncing paper;

Figure 6 is an enlargedplan view of the mounting for the pouncing toolVassembly; 1

Figure? is anenlarged elevation of a portion o the hydraulic system,certain parts thereof being shown in section; and

Figure 8 is an -enlarged fragmentary elevation of part of the paperfeeding mechanism, portions thereof being shown in section.

Similar reference' characters refer to similar parts throughout theseveral views of the drawings.

In general and with reference to Figure 1, the pouncing'machinecomprises a column generally indicated at I formedby a base section II,a motor housing I2 and a head I3.-V A shaft I3lJL` is journaled in headI3 and hassecured on one end thereof a chuck generally indicated at IIIwhich receives a hat blockV I on which a hat body I6 may be mounted.Preferably shaft I3a is adjustable axially by any suitable mechanicalinstrumentality (not shown). such asis described in my copendingapplication VSerial NumberV 5,757, led

Another object is to provide a February 9, 1935, in order to change theposition of chuck I 4 to accommodate hat blocks of different depths. Onthe other end of'shaft I3a is a driven pulley ,I1 connected by means of`a belt i'to a driving pulley I9 associated with a clutch 5 Y generallyindicated at 20. Clutch 20 is driven by a motor 2| mounted in' housingI2 andthus shaft I3 maybe driven to rotate hat block I5. Motor 2l alsodrives an `oil pump 22 by means'of pulleys 23 and 24 and belt 25,011pump 22 preferably being mounted in the upper` partl of section II ofcolumnIIl. v. "j

Rotatably mountedon a bracket generally indicated at 26 (Figure 1)secured to and extending from sectionA II is a pouncing tool assemblygen- Y erally indicated at 21 which is movable about and toward and awayfrom hat block I5 through instrumentalities to be described hereinafter.Bouncing tool assembly 2'! includes a pouncingv tool and adrivingmechanism therefor as will also bedescribedin detailhereinbelow. Y

Oil pump 22 (Figure 41), supplies oil under pressure `to aA hydraulic`piston reciprocably disposed in a cylinder 35 secured to the lower partof vsecftionl II Aof the machine column. A piston rod` 60 vextendsthrough a gland 6I on cylinder 35 and has connectedthereto a rack 62supported by a guide 63 securedtoV bracket 26. VPouncing tool assembly2l is mounted on Va vheavy pin or stud 64 which is rotatably journaledin a suitable Yhousing 26a' or the like which may be anintegral part ofbracket 26 kvorfconnectedthereto in any suitable manner. Preferably stud64 has gear teeth (not shown) cut-V thereon vwhich mesh with anidlergear (not shown) which in turn `meshes with the teeth of rack'62.Thus reciprocation of rack 62 causes rotation of stud 64 and accordinglyrotation of pouncing tool assembly 2l; For a more detailed disclosureand description of these parts, reference is made to myabove-notedcopending application.

`As is more clearly shown in Figures 2 and'6, a collar generallyindicatedat 65 is secured to the top of stud 64 (Figure 2) so as toberotatable Ytherewith and from this collar extends a bracket portion65a. As is more clearly shown in Figure 6, bracket portion 65a; isprovided with arms 65h, eaclf of which has a cut out portion 650(Figures 1 and 2).' A'v resilient strip 235 ,(Figure 6) is secured toeach of arms 65h in'cut out portions 65C thereofV (see Figure 2),,screws 236v (Figure 6) holding the strips'in place. The free ends of-strips"235 have secured', respectively thereto'the v legs 61a. and'61h' of bifurcatedpart 61 which is provided witha borefsw receiving apints.v A set screw 231 extends through part 61 and bears against pin 68to hold the pin and the part in nonpivotal relationship. The lowermostpart of pouncing tool assembly 21 (Figure 3) comprises a supportingmember 238 including bored portions 23801,` and 2385 which are pivotallymounted about pin B6. It may now be seen that pouncing tool assembly 21is resiliently mounted with respect to assembly stud 84 (Figure 1) andthis for a purpose pointed out hereinafter.

Preferably the bored portion of bfurcated part 61 (Figure 6) hasextending therefroman arm 61d which forms an abutting member engageablewith the top of one of arms 85h of bifurcated part 65a to limit themovement of the pouncing tool assembly 21 resulting from the resiliencyof Strips 235.

Referring to Figure 3, pouncing tool assembly 21 is preferably built upof several cast housings or the like and accordingly comprises a crankcase-21a, a cross head guide housing 21h, a paper roll support 21o (seealso Figure 1) and a pad guide bracket 21d, all of which will bedescribed in greater detail hereinafter. Crank case 21a issecured tosupporting member 238 and accordingly pivotal movement about pin 66causes swinging of the entire pouncing tool assembly toward or away fromthe hat block.

Crank case 21a is provided with bores 68 and 69 in which are disposedroller bearings 10 and 1|. Disposed respectively within bearings 10 and1| are outer spacer 12 and inner spacer 13, these spacers each beingprovided with a bore which journals a motor shaft extension 14. Innerspacer 13 hasa large bore 13a. which forms a shoulder 13b against whichan enlarged portion 14a of shaft 14 abuts when shaft 14 is properlypositioned in the spacers. The other end of shaft 14 is preferablythreaded to receive lock nuts 15 which, when taken up against outerspacer 12, securely hold shaft 14 in its operative position in thespacers. Preferably I provide acap 16 which is secured to the outer sideof crank case V21a'. by means of screws 11, this cap preferablyincluding portions 1611i which rest against the outer race of bearing 10to hold the bearing in its proper operative position. Bearing 1| is heldin its proper operative position by a suitable shoulder former on innerspacer 13.

Mounted on shaft 14 and rotatable therewith is a main crank disc 18 onthe opposite sides of which are smaller crank discs 19 and 88 which arealso secured to shaft 14. These three crank discs are centered on shaft14 between spacers 12 and 13 by a part 8| disposed between the innerrace of bearing 10 and the crank disc 19 and by another part 82 similarto part 8| disposed between the inner race of bearing 'H and crank disc88. Parts 8| and 82 also conveniently pro- Vide means for throwing oilabout the interior of crank case 21 and thus lubricate the partsrotating therewithin while at the same time preventing excessive oilfrom entering bearings 10 and 1| which require only a film of lubricant.Bearing 1| and accordingly part 82, crank discs 18, 19, and part 8| areconveniently held in position in the crank case by means of an annularpart 83 which bears against the outer race of bearing 10 and is securedto the crank case by means of screws 84. Preferably I provide an oilseal 85 between inner spacer 13 and annular part 83 to seal lubricantwithin` the crank case.

Crank case 21a is also provided with a motor (not shown) of this motorbeing connected to shaft 14 (Figure 4). Referring again to Figure 4, Iprovide a ball bearing 88 on crank disc 19, a ball bearing 89 on crankdisc 18 and a ball bearing 99 on crank disc 80. Mounted on thesebearings respectively are connecting rods 9|, 92 and 93 in the upperportions of which are respectively disposed wrist pin bushings 94, 95and 96 through which wrist pins 91, 98 and 99 respectively extend. Apair of balancing rods |00 and |0| having bifurcated lower ends areconnected to connecting rods 9| and 93. Thus the bifurcations of balancerod |00, for example, lie on opposite sides of the upper end ofconnecting rod 9| and wrist pin bushing 94 and are suitably bored toreceive wrist pin 91. Balance rod |0| is similarly related to crankshaft 93. Preferably the bifurcations of these balance rods closely litthe opposite sides of their respective connecting rods and wrist pinbushings so as to allow a minimum amount of play therebetween.

Balance rods |00 and |0| are preferably of bronze and are provided for apurpose to be described more fully hereinafter.

A reciprocating rod |02 extends upwardly through cross head guidehousing 21b and has its lower end bifurcated and secured to the upperend of connecting rod 92, the bifurcations of this rod preferablyclosely fitting the sides of the upper end of connecting rod 92 and thesides of wrist pin bushing 95. Wrist pin 98 extends through thebifurcations of rod |02 and is secured thereon by means of a suitablescrew |03 or the like threaded into the wrist pin. Preferably the lowerend of rod |02 is dimensioned to have a substantially close sliding tbetween the lower ends of balance rods |00 and |0| thus, in effect, thelower ends of the balance rods constitute a guide for the lower end ofthe reciprocating rod.

In the upper portion of cross head guide housing 211) I provide a rodguide |08 in which are moimted suitable bushings |04, |05 and |08 whichslidably receive balance rod |00, reciprocating rod |02 and balance rod||l| respectively. Preferably reciprocating rod |02 is a hollow tubefabricated from a light but strong material such as, for example, Dowmetal, an alloy comprising about 971/2 per cent magnesium and about 21/2per cent aluminum, thus providing a rod which is light in weight thoughextremely rigid. In order to avoid excessive and rapid Wear of rod |02,the portion thereof which reciprocates within bushing |95 is preferablysmaller in diameter than the diameter of the bushing and is coated withhard steel which is ground to the size of the bushing, thus providing abearing surface that will stand long and rigorous use. 'I'he upper end|02a of rod |02 is similarly treated and is received in a bushing |01disposed in the upper portion of rod guide |08 which extends throughpaper roll support 21o and is secured to l cross head guide 21h by abolt |08a (Figure 3). Upper end |02a of hollow rod |02 is preferablythreaded to receive a pad supporting rod |09 (Figure 4) the lower end ofwhich has a shoulder IUS-a on which is mounted a ball bearing ||0. Theupper end |09b of rod |09 is preferably reduced and has mounted `thereona ball bearing which facilitates the swiveling of a feeding pad frame 5as will' be more fully explained hereinafter.

Paper roll support 21e (Figure 4) is provided with an upper annularbearing ||2 which bears against the outer surface of rod guide |08. The

lower end of support 21o receives a ball bearing 7'5.

H3 which is held in the support by a washer H4. The inner race-ofbearing H3 restsupon the top of cross head guide housing 21h and thuspaper roll support 21e land pad frame H5 are free to pivot aboutrodguide |08. n

Feeding padframe H5 is provided with portions |5a and Hbwhich t aboutball bearings H and IH respectively Vto provide a pivotal relationbetween frame H and pad vsupporting rod |09. Frame I I5 is heldin itsoperative position by a pair of lock nuts I I6 threaded onto the upperend of pad supporting rod |09, and these nuts when taken up hold framel| I5 against the top of ball bearing H0 which in turn is held againstthe top of reciprocating rod |02. It will also be noted that frame I I5has a cup shaped portion ||5c which fits over the upper end of rod guide|08 so that upon reciprocation of rod |02 guide |08 extends into cupportion ||5c of frame H5. Extending from portion I |5c I preferablyprovide aguide. portion ||5f which slides against an impregnated woodguide block 21e during operation of the pouncing tool. Guide block 21eis secured in frame gui-de 21d in any suitable manner. As may be seenfrom the above, paper roll support 21e and pad frame H5 are pivotallyrelated to rod |03 by bearings H0, H2 and H3 so as to facilitateswiveling of the pouncing pad as it passes over the square of the hatbody for example.

As is more clearly shown in Figures 1 and 3,

paper support 21e has extending therefrom a w pair of brackets I I1 oneach of which are formed bosses H8 and H9, having coaxial boresextending therethrough. Disposed within these bores is a paper rollsupporting pin |20 (Figure 4) which rotatably carries a roll ofsandpaper |2I. Preferably boss H8 is provided with a slot I|8a (Figure3) which receives an extending arm |220.

ofaa spring' |22 (see Figure 2,) secured to one of brackets H1. Arm|2211. when positioned in slot lHd (Figure 3) fits into a depression(not shown) formed in the end 'of pin |20 to prevent casual displacementof the pin. `vWhen the roll of sandpaper |2| becomes exhaustedarm |22amay be lifted out of place to permit withdrawal of pin |20 so that anewroll of sandpaper may be installed.

' Bridging the space between the lower portions of brackets H1 is a pin|23 (Figures 3 and 4) having secured thereto a friction blade hub |24.

bridges the space between the upper portions of Y brackets 1. Associatedwith padframe H5 are a pair of brackets |3| (Figuresrl and 2) in whichis mounted a pin |32 (Figure 4). A guide roller |34 is rotatably mountedon pin |32 and Va U shaped cross piece |3B,the lower end portion ofwhich is also mounted pivotally on pin |32, is provided to bridge thespace between brackets |3|. The upper portion of'cross piece |35 isprovided with a bearingpinv |33 on which a friction roller |35 isrotatablyA mounted. A flat Vleaf spring |31 is secured to the back'portion of cross piece |36fby a screw |38. 1 The upper end ofhereinafter.

spring |31 is provided with a small slotted button |31.V A yoke likelatch |39 is movably mounted in the rear part of pad frame H5 andadapted to engage the slotted button |31a. Associated with the rearportion of pad frame H5 is a paper guide strip |40, fastened to the padframe at the lower end at |40a and the upper end at |405 (Figure 4). Itmay thus be seen that the action of springy |31, when engaged with latch|39 forces the roller |35 against paper guide strip |40, 'clamping thesandpaper yieldingly therebetween.

Secured to the top portion ||5b of pad frame 'H5 is a top paper guide|4| and to a front portion ||5e of frame H5 is secured a pouncing pad|42, preferably of sponge rubber or the` like. Extending from frame H5and below pouncing pad |42 are a pair of projections I 43 (Figures 1, 2and 4) and in and between these projections are rotatably mountedtoothed feed drums |44 and |45 (Figure 4) these feed drums being drivenlby a mechanism to be described It may now be seen lfrom the above andwith reference yto Figure 4 that afterv the sandpaper leaves roll I2|and is fed over guide roller I 25 it extends between guide roll |34 andIguide strip I 40a, between friction roll |35 and guide strip |40, upand overv the surface of guide strip Y |40 over top guide strip |4|,down over pouncing pad |42 and between the toothed feed drums |44 and|45 upon actuation of which the paper is automatically fed fromv rollr|2I. j

As'has been pointed out above, pouncing tool assembly 21 (Figure 1) ispivotable toward and away rfrom hat body |6 `and is also movable about'the hat body so as to Contact it over a path extending substantiallyfrom the apex of the hat to the brim portion thereof. Because of thefrusto-conical shape of the hat body it is important that the ,pressureof the pouncing tool thereagainst be varied during the travel of therrpouncingtool. To `this end, as is most clearly shown in Figures 1 and 2,I provide an arm |45y which is revolubly mounted on pin 65 (Figure 3)which carries tool assembly 21. Arm |46 (Figure 1) is preferablyT-shaped .and on the lower portion |4611 thereof is rotatably mounted aroller |41 while the upper portion |462) thereof is preferably providedwith a pin |48 or the like for a purpose described below. A cam |49 isadjustably secured to the top of Vhousing 26a by a bolt |50, the surfaceof this cam being designed in accordance with the shape of the hat block|5 being used, and it is upon the upper surface of this cam that roller|41 of arm |46 rides.

A bracket |5| (Figure 1) Yextends from crank case 21e'l to provide amounting for a leaf spring |52, the `end of which is borne by stud orpin |48 located in end-portion |4611 of arm I 40. Thus it will be seenthatthe extremities of T-arm lie between and Contact the top surface ofcamV |45 andthe end of leaf spring |52. Thus when tool assembly 21 isrotated by the action of rack E2, which is impelled by the piston incylinder 35, in the direction of the downward slope of cam |49, arm |45pivots about pin 65 (Figure 3) so that the tension in leaf spring |52(Figure 1) is relieved thus permitting tool assembly 21 to pivot towardhatfbody I5 to bring the pouncing tool into contact with the surface ofthe hat body. ItA

may alsoY be seen that when roller |41 rides up carn` |49, arm |46 ispivoted counterclockwise thus tensioning spring |52 whichcauses toolassembly 21 topivotaway from theghat body. Preferably 75Y surface of thehat body at the apex thereof, upon its return stroke, arm |46 is pivotedupwardly at a faster rate so as to remove the pouncing tool from thesurface of the hat body.

Preferably I provide an arm 300 (Figure 1) secured to the bottom of toolassembly 21 which abuts against an adjustable stop 30| mounted on T-arm|46 to limit the swinging'movement of assembly 21 toward the hat block.

While tool assembly 21 (Figure 1) tends of its own weight to swingtoward hat body I6, its weight is not sufficient to overcome the tensionof leaf spring |52 to bring the sandpaper covered pouncing pad |42 intocontact with the surface of the hat body. Accordingly to urge thepouncing pad and sandpaper into contact with the hat body, I haveprovided a coiled spring |53 (Figure 2). Spring |53 is preferablydisposed in a drum |54 and is anchored to. the drum and supporting pin66, as is more clearly shown in Figure 3, to constantly impel toolassembly 21 (Figure 1) toward the hat body, drum |54 being revolublyassociated with pin 66 in any suitable manner for a purpose to bedescribed hereinafter. Thus coil spring |53 may be termed a tensionspring whereas leaf spring |52 (Figure l) may be termed a tension reliefspring and by adjusting the effective tensions of each of these springsthe pressure of pouncing pad |42 against hat body I6 may be given anyone of a wide range of Values.

To effect the adjustment of the pouncing-pad pressure against the hatbody I provide a rod |55 (Figure 1) having a threaded portion |55a.. Theend of threaded portion |55a of rod |55 is revolubly mounted in abracket |56 while another portion of this rod is borne in springsupporting bracket |5|. The Unthreaded end of rod |55 has securedthereto a hand wheel |51 or the like and preferably disposed between thehub of this wheel and bracket |5| is a cup shaped housing part |53 whichhouses a coiled spring |59 disposed about rod |55. Spring |59 ispreferably an expansion spring and forces the closed end of cup |58against the hub of hand wheel |51 thus constituting a friction brake toprevent casual turning of the hand wheel and rod |55. Threadablyreceived on the threaded end `of rod |55 is a nut |60 having securedthereto a pointer I6 Pointer 16| registers on a graduated scale mountedon the surface of crank case 21a so as to indicate the value ofeffective tension in spring |52. Nut |60 also includes a portion (notshown) on which the under surface of leaf spring |52 rests. Thus bymanipulating hand wheel |51, nut |60 may be moved in one direction oranother to vary the effective pressure of tension relief spring |52.

As is more clearly shown in the lower right section of Figure 2, anotherbracket |62 is secured to crank case 21a and has revolubly disposedtherein a shaft |63 on one end of which is mounted a hand wheel |64. Aworm (not shown) is preferably cut on shaft |63 in bracket |62 andmeshes with gear teeth |65 which are cut along a portion of theperiphery of drum |54. A pointer |66 is mounted on bracket |62 and theend of this pointer overlies a graduated scale |61 mounted on theexterior surface of drum |54. Upon manipulation of hand wheel |64, drum|54 is revolved in one direction or another to attain the desiredtension of coil spring |53, the Value of the tension being indicated onscale |51 by pointer |66. It may now be seen that by setting hand wheels|51 and |64 at desired points as indicated by pointers |6| and |66, anaccurate adjustment of the pressure exerted by pouncing pad |42 againsthat body I6 is readily obtained.

As mentioned hereinabove, tool assembly 21 is given its rotary motionthrough a hydraulic instrumentality, namely cylinder 35 and accordinglythe hydraulic system will now be described.

With reference to Figure 1, oil pump 22 is provided with an intake pipe28 (see also Figure 2) which sup-plies the pump with oil from areservoir or sump (not shown) located in the lower part of section ofcolumnv I0. Leading from oil pump 22 is an oil outlet pipe 20 (Figure 1)connected to a metering valve generally indicated at 36. A directioncontrol valve 3| is connected to metering valve 30 by means of a pipe 32and connected to direction control valve 3| are pipes 33 and 34 whichare connected to the opposite ends of cylinder 35. An exhaust pipe 36 isconnected tothe lower part of direction control valve 3| and is alsoconnected by way of T-joint 31 (Figure 2) to the oil reservoir insection of the machine column.

Referring again to Figure l, aA relief valve 38 is also connected to oilpump 22 and this relief Valve is connected by Way of a pipe 39 (Figure2) to T-joint 31 and accordingly to the oil reservoir in section of thecolumn.

Direction control valve 3| (Figure 1) has disposed therein a plunger(not shown) which is moved vertically upon movement of a plunger rod 40which is in turn actuated by a hand lever 4| pivotally mounted onhousing l2 of the column by a pin 42. Lever 4| conveniently is a bellcrank lever the lower end 4|c1l of which is connected to a rod 43slidably extending through a pair of brackets 44 and 45 secured tohousing |2. Disposed between brackets 44 and 45 and about rcd 43 is areturn spring 46, this spring being effective to return lever 4| to itsoriginal position after the lever is operated to force plunger rod 40downwardly. When plunger rod 40 is forced downwardly, it is held in thisposition by a lever 41 having on its lower end a detent (not shown)-which catches on a shoulder 46a formed on plunger rod 40. Thus oilunder pressure is directed through pipe 34 to the left-hand end ofcylinder 35, as Viewed in Figure l, causing left to right movement ofrack 62.

An adjustable abutment |68 (Figure 1) is mounted on piston rod 66 fortravel therewith and during the left to right travel of rack 62, andaccordingly piston rod 60, abutment |66 engages one end |60a of a bellcrank lever |63 which is pivotally mounted on section of machine column|6. Further movement of abutment |63 pivots lever |69 causing upwardmovement of another arm |691) thereof to which is attached a reversingrod |10, the upper end of which is borne in a guide |1| secured tocolumn E6. As the end of the stroke of piston rod 60 is approached (atwhich time pouncing pad |42 is adjacent the brim portion of hat body I6)reversing rod |10 is raised (through the coaction of abutment |63 andbell crank |69) sufciently to engage lever 41 so as to disengage thedetent (not shown) on the end thereof from shoulder 40m of plunger rod45. It is apparent that the reversing of piston rod 60 may be advancedor retarded according to the position of abutment |68.

A spring (not shown) in reversing Valve 3| forces the Valve plunger (notshown) upwardly so as to change the direction of flow of oil from pipe34 to pipe 33 thus yintroducing the oil under pressure into the otherend of cylinder 35 causing right to left movement of cylinder rod 60 andaccordingly rack 62. Thus tool assembly 21 is rotated in its returndirection of travel passing substantially through an angle of 180degrees measured from the brim portionV of the hat so that the toolultimately assumes a stationary position spaced from the hat body. Whenthis position is reached, further movement of the piston in cylinder 35is impossible and `oil fromfpump 22 bypasses through relief valve 38.

Under certain circumstances, it may be desirable to reverse thedirection of travel of tool assembly before it reachesthe-end of itsforward stroke adjacent the brim portion of the hat body. To effect suchpremature return, I provide a hand lever |12 secured to a bell cranklever |13 pivotally mounted on the upper portion of section l of themachine column. Counter-clockwise movement of lever |12, as viewed inFigure 1, causes end |13a of the bell crank lever to rise and engagelever 41 thus disengaging the detent (not shown) mounted thereon fromshoulder 40a of valve plunger rod 40 causing the valve to effect areversal of fluid flow.`

Under certain conditions, it is desirable that the feed rate of thepouncing tool over the surface of a hat body vary during its forwardtravel and during its reverse travel so that the pouncing paper contactscertain portions of the hat-body a less amount than other portionsthereof. In the interests of economy of time it is also desirable toeffect a quick returnof the pouncing tool from the apex of the hat bodyto its inoperative position where it is spaced from the hat body.

To effect automatically this varying feed rate I have provided a cam |14(Figure 1) which is secured to the top of and travels with rack 62. Cam

|14 travels under a roller |15 mounted on ano-ther arm |69c of lever |69thus causing pivoting ofV bore which threadably receives a speedadjusting screw 5| which is provided with a head Alilo.. Secured to oneend of screw 5| is a pointer 52 which indicates the position of head 51aby pointing to indicia (not shown) on the face of dial 50. Screw 5| andthe bore in dial 50 are so threaded that relatively small rotation ofthe screw effects substantial axial movement thereof in one direction orthe other, this adustment being provided for a purpose to be describedhereinafter.

With reference to Figure 7, uid under pressure flows through pipe 29into a chamber 36a of metering valve 30. Chamber 30a is provided with anoutlet port 30h in which a spring actuated piston 53 (partly shown insection) is slidably received. Piston 53 is provided with a longitudinaltapered groove 53a on its circumference and an outwardly extending stem53h which abuts a push rod 54. Stem 53h is sealed in a portion 311e ofvalve 30 by a cap 55 and a suitable oil seal 55m.

Valve 30 is suitably mounted on a bracket 56 (seee Figures l and 7)secured to section of the machine column. Secured to bracket 56 and eX-tending therefrom, I provide a preferably U- shaped bracket 51 (Figure7) which has a threaded bore 51a extending therethrough. Suitablythreaded into bore 51a is an adjusting screw 58 suitably bored toreceive push rod 54. Push rod 54 preferably has a head 54a thereonadapted to abut against the adjacent end of screw 58. It may' `othersurfaces ited, in that push rod 54 and accordingly collar 54a thereoncanslide through screwV 58 until collar 54a abuts thereagainst thuslimiting the closing movement of valve piston 53 and stem 53h.

The outer end of push rod 54Y (Figure 7) is adjacent head 5|a of screwV5| and according to the position of head 5|a with relation to dial 50,head 5|a abuts the end of push rod 54 sooner or later during thepivoting ofbell crank |69. Thus it is possible t'o provide a dwell atthe end of the forward feeding motion of the pouncing tool because screw58 can be set so that, when head 54a abuts the end of the screw, port30h of the valve 30 is c dial 50, that is, the screw may bemanipulatedto retract head 5|a thereof so that when head 54a' of push rod -54 abutsthe end of screw 58 continued movement of lever|69 separates theengagement of head 5|a`and the adjacent end of push rod 54. It will alsobe seen that the dwell can be avoided by manipulation of screw 5| topush head 5|a thereof away from the adjacent side of dial 50thuspreventing the substantially complete closing of the valve 30-asbell crank |69 reaches the end of its pivotal movement. It isadvantageous to provide this dwell so thatV the pouncing tool |42(Figure 1) may operate on the band portion of hatbody I6 longer thanupon thereof, the band portion of the hat often being the most difficultpart thereof to pounce.

It may also be seen that depending .upon the position of pouncing pad|42 in relation to the surface of hatbody I6 and consequently theposition of cam |14 and lever |69, lthe orifice in metering valve 30 isgreater or smaller to effect the desired rate of ow of the oil andaccordingly effect the feed rate of the pouncing tool. For a moredetailed descriptionV of certainA features of the hydraulic systememployed in my pouncing machine, reference is made to my above-notedcopending application, Serial No. 5,757, led February 9, 1935. f Y

As noted above, the mechanism encased in tool assembly 21 .includescrank discs 18, 19 and 80 (Figure 4) and rods-|02, |00 and |0|(Figure 1) which are connected respectively thereto, these crank discsbeing rotated by motor 81. Preferably reciprocating rod |02'isreciprocated at a high rate of speed which maybe as high as, or higherthan 3600 reciprocations .per minute. In order to dampen the vibrationnaturally en,- suing from suchrapid reciprocation, and prevent rapiddeterioration of the mechanism, balance rods |00 and |0| and theirrespective crank shafts and crank discs and wrist pins are soproportioned as to exactly equal in weight the weight of reciprocatingrod |02, its crank shaft, wrist pin and crank disc, pad frame |15 andall of the various parts secured thereto about rod |09.

In order to maintain this perfect balance I have found it desirable tomount' the roll of sandpaper |2| stationary relative Yto pad frame- ||5and accordingly a feed mechanism for the sandpaper is provided whichwill be described in called splash system.

. guide 21b Vby a bracket'or clamp |81.

Thus the bottom-'of 'crank case 21a (Figures-3 and 4) conveniently formsa reservoir `into which a suitable lubricant may be introduced in'anyconvenient manner. VPreferably an oil gauge |16 (Figure 3) is secured tocrank case 21a in a position to indicatethe oil level within the crankcase. As pointed out hereinabove, parts 8| and 82 (Figure 4) are soformed as to supplement the splashing action of crank discs 18, 19 and89 and accordingly act as lubricant throwers to throw oil or othersuitable lubricant up into cross head guide 21h to lubricate the severalwrist pins and bearings of balance rods and |0| and reciprocating rod|02. These lubricant throwers 8| and 82 also prevent excess lubricantfromreaching ball bearings 19 and 1|. Preferably I provide -a pair ofelbow breathers 41 which are secured to the upper portion of crosshead-guide V21, these breathers providing ventilation for-the interiorofthe cross head guide and crank case-21a.

In order to effect a regular feed of sandpaper from roll |2| over`pouncingpad'l42 (Figure 1), I provide a feed mechanism comprising a feedoperating rod |11'-which is slidablyreceived in a guide bracket |18(Figure 3) secured'to one end of stud 66. The lower end of feed rod |11is provided with a cam piece |19 (Figure 1) for a purpose to bedescribed hereinafter. The upper end of rod |11 has a'pair of'collars|89 and |8| (Figure 3) secured'thereto and between these collars a guidesleeve-|82 is slidably disposed on the rod, Va spring |83 constantlyurging guide sleeve |82 upwardly against collar |8l. -Guide sleeve|82-ispivotally-connected' to'a lever l|84 (Figure/1) which is, in turn,secured to a Vshaft |85 rotatably mounted in `a bearing |88 (Figure 3)secured to the upper'portion of cross head On the left hand end of`shaft' |-95,-as viewed in Figure 3, there is secured -a-pawllifting arm|88,-which as 'is more clearly shown in vvFigure 5 has a roller |89rotatably mounted thereon. Y

Withreference to -Figure 2,- a slot Y|9|! is preferably'formed in paperrollsupport 21o and in this slo-t is slidably disposed asliding arm |9|having a shoe-|92 formed on "the bottom thereof. A cover 'plate|93'isbolted to the 'side `of'paper rollsupport 21c over slot"|99to holdsliding arm |9| in its assembled position.

As is more clearly l'shown in Figure 5, sliding arm |9| is providedlwith a shoulder |9|a which rests'on'a flanged portionY |-9l4 (Figure 3)of support 21o when arm |9|A is in'its lowermost position. I preferablyprovide aboss A|9305 (Figure 3) on cover plate |93 which-has a threadedbore extending therethroughto-.adjustably receive a stop` screw which isconveniently held in-its set position by a lock-nut '|96. TheVv bottomof stop,:screw |95 'thus limitsthe upward throw of sliding-arm |9|.

The upper endof arm |9| '(Figure 5) is preferably bifurcated and isprovided with a 'pivotally mounted pawl |91 which, when arm |9| isforcedupwardly, engages ratchet wheel |98 to impart clockwise rotationtheretoA to the extent of onenotchfper engagement. The bifurcation'inthe upper end of arm -|9| is preferably relatively shallow as-is moreclearly shown in Figure v8, and extending downwardly from the bottom ofthe bifurcation is a tapered groove 4|9|a. A leaf spring 240 has itslower end secured in the body of 'arm |9|, this spring extendingupwardly through groove |9|a and having its free end 249a'lying'in anotch |91a`formed in-pawl |91, the bias ofthe spring thus'tending tokeep pawl |91 centered. Ratchet wheel |98 (Figure 5) is mounted on oneend of a shaft |99 which bears on its otherend a pinion 289, pinion 299being in constant mesh with a gear 29| secured to one end of toothedfeed drum 14|.

It may now be seen that when feed rod |11 (Figure 5) is forced upwardly,lever |84, shaft |85 and arm |88 are given a clockwise movement, asviewed in Figure 5, causing roller |89 to rise against sliding arm shoe|92 which in turn causes arm |9| to ride upwardly forcing pawl |91 intoengagement with ratchet wheel |98. Through the medium of gears 299 and29|, feed drums |44 and |45 are rotated respectively in counterclockwiseand clockwise directions upon reciprocation of the pouncing pad, and apiece of sandpaper lying between the feed drums, as shown in Figure 4,is pulled therethrough to the extent of one notch on ratchet wheel |98for each reciprocation of the pouncing pad. To -prevent backward feed ofthe sandpaper I have provided a spring urged pawl 292 (Figure 2) whichprevents reverse rotation'of ratchet |98. v

Every time rod |11 (Figure 1) is pushed upwardly, sandpaper is fed fromroll |2|. This feeding action takesV place during the reciprocation ofpouncing pad |42 which causes ratchet |98 (Figure 5) to engage pawl |91for each stroke of the pouncing pad when arm |9| is in its raisedposition. Rod |11 and accordingly-arm |9| are raised every time-carnpart|19 rides over Ya roller 293 which is secured to a bracket 2Gb mountedon the top-of housing 26a and the cam part rides over this roller twiceduringeach cycle of operation of the pouncing tool. Preferably bracket2Gb (Figure 1) is provided with a plurality of holes 26o in any one of.whichroller 293 may be secured to advance or retard the feeding ofthesandpaper. However, due to the extremely rapid` reciprocation of thepouncing pad, more sandpaper would be-fed than is necessary to replaceworn paper were the feeding mechanism to operate twice during eachoperating cycle ofthe pouncing tool assembly.

Under certain circumstances it might be desirable to effect a completechange of sandpaper upon pouncing pad |42; such a change beingreadilyeiected by manually raising arm .|9| (Figure 2) during theoperation of pouncing-pad motor 81 until the rapid reciprocation ofpouncing pad and its Connected parts have caused the feeding of as muchsandpaper as desired.

To automatically stop the rotation of the'hat block |5 and thereciprocation of the pouncing pad after completion of the pouncingoperation on each hat, I provide a shut-off mechanism which is mostclearly shown in Figure 2. Extending through suitable bosses 26d and 26eformed in bracket 28 I provide a shaft 294 which has mounted on theupper portion thereof a lever 295. On the lower portion of shaft 294 issecured a dog 296 and a collar 291, between which is a bell crank lever298, one projection 298a thereof lying in the path of a projection 84a(Figure l) on tool assembly stud 64. The other arm 2885 (Figure 2) ofbell crank lever 298 preferably extends from the shank of the lever toabut an adjustable screw 299 extending through the end of dog 296 whenbell crank lever 298 is pivoted by abutment 64a (Figure 1) on stud 84 tocontact bell crank lever arm 298a.

Lever 295 (Figure 2) has pivotally secured to the end thereof, one endof a rod 2|0, the other end if which is pivotally secured to an arm 2|la 75 of a bell crank lever 2| I pivotally mounted on section ofthemachine column. The other arm 2I|b of bell crank lever 2H ispivotally connected to an. operating rod 2| 2 which extends upwardly toa pivot block 2|3, pivot block 2I3 being connected to a lever arm 214which is, in turn, connected tothe outer end of a s-haft or stud 2|5pivoted to the machine column. The inner end of stud 2I5 has securedthereto a crank arm 2|6 which lies between two pins 2|1 extending from aclutch operating rod 2|8. Clutch operating rod 2|8 extends through andis borne by a bracket housing 2 I9 mounted on motor housing I2, clutchrod 2|8 having secured theretoa fork 229 having bifurcated arms 22|,

the ends of which lie in a grooved clutch shifting part 222 extendinginto clutch 21|.

Returning to pivot block 2| 3, there is also pivoted thereto a block 223to which is secured a rod 224. Rod 224 is pivotally connected at itsupper end to one arm 225:1 of a bell crank lever 225, the other arm22511 of which receives an operating lever 225. Bell crank lever 225 issecured to one end of shaft 42 which is pivotally mounted in the upperpart of motor housing I2 and which has secured to its other end a dog420.. the lower portion of which extends inwardly and under the arm 4Ia,of the bell crank lever Albi. It may thus be seen that movement ofoperating lever 4| to the right (Figure l) will cause arm 41a, to engagethe inward extension of dog 42a and thus through shaft 42 the lever 225(Figure 2) will move in unison with lever 4| b. However, since the bellcrank lever Il Ib is free to pivot about shaft 42, the lever 225 can beoperated independently when it is desiredto only rotate the the hatwithout the pouncing pad moving into engagement as, for example, for thepurpose of brushing off the dust after pouncing. Secured between theends of rod 224 (Figure 2) is a collar 22.1 to which is pivoted a switcharm 228 for operating a mercoid switch 229 or the like. Mer- :oid switch229 is preferably hooked up in series with main switch 23|) whichsupplies electricity by way of conductor 23| to motor 81. Thus althoughthe circuit is made through main switch 230, it may be broken by movingswitch arm 228 of mercoid switch 229 and this fora purpose pointed outhereinafter.

As pointed out hereinabove. it is desirable toV cause feeding of thepouncing paper only once during one cycle of operation. Accordingly,projection 64a (Figure l) which extends from and consequently rotateswith tool assembly mounting stud 54, is preferably so positioned that itcontacts bell crank lever arm 298a (Figure 2) shortly after pouncing pad|42 has completed its operations on the apex of the hat body during thereturn movement of the pouncing tool. When projection 54a abuts bellcrank lever arm 29M bell crank lever 258 (Figure 2) is swung so that itsarm 2981) abuts screw 299 in dog 296 and accordingly further movement ofbell crank lever 298 causes rotation of shaft 294. Rotation of shaft 294is translated into horizontal linear movement of rod 2I through themedium of lever 295, and linear movement of shaft 2|@ is, in turn,converted into vertical linear movement of operating rod 2|2 bymeanswo-f bell crank lever 21|. operating rod 2|2 moves upwardly, clutchoperating lever 2|4 also swings upwardly Yto cause clutch pin 2| E tomove to the left as viewed in Figure 2, thus causing movement to theleft of shaft 2|8 and forked part 220. This movement of part 220 causesoutward movement of grooved clutch operating part 220 which, in turn,causes disengagement of the clutch and consequently a cessation ofrotation of spindle i3 which bears the hat block I5.

Upward movement of operating rod 2|2 also causes upward movement of rod224, this in turn causing switch arm 228 to swing upwardly and break thecircuit in mercoid switch 22,9 and so shut off pouncing pad motor 81. Asthese several movements occur quite rapidly, motor 51 has sufcient timein which to stop its rotation before cam part |19 (Figure l) engagesroller 293 which would position the various parts of the pouncing paperfeed mechanism for feeding of paper.

When the machine is put into operation again to pounce a new hat bodylever 4I (Figure 1) is swung, thus directing fluid into the hydraulickpiston 35 to cause left to right motion of rack 52 as viewed in Figure1 to start the pouncing tool assembly in its forward feed motion.Through the agency of metering valve 39 and cam |14, the first part ofthe forward motion of the pouncing tool during which it is not incontact with the hat body is quite rapid, and accordingly cam part |19is in contact with roller 293 for a very short space of time. However,the reciprocation of pouncing pad frame H5 and the feed mechanism partsmounted thereon is so rapid that, even in the short period of contactbetween cam |19 and roller 293, ratchet wheel |98 (Figure 5) has beenforced against pawl |91 a suiiicient number of times to cause a sufcientamount of sandpaper to be fed over pouncing pad |42. Immediately aftercam part |19 (Figure l) has left roller 293,

i sliding arm I9! (Figure 5) falls removing pawl |91 from the range ofthe stroke of ratchet |98; hence no subsequent feeding ofthe sandpaperis effected.

In operation `the operator of the machine, after securing hat block I5(Figure 1) in place on chuck i4 and after securing hat body I6 in placeon the hat block, manipulates hand wheels |55 and |51 to adjust springs|52 and |53 (Figure 2) so that pouncing pad |42 will bear against hatbody i6 with the desired pressure. The operator also adjusts screw 5| ofthe metering valve to set the forward and return feed rates of thepouncing tool. Also sandpaper feed roller 203 is set in the desired hole26e, particular hole being chosen in accordance with the amount ofsandpaper to be fed per operation of the pouncing tool. The operatoralso adjusts abutment |69 to time the reversing of the pounching tool inaccordance with the depth of hat body |G.

After'the above-noted adjustments have been made the operator swingslever 4I, as viewed in Figure l, thus depressing valveplunger rod 4D todirect the iiow of oil under pressure into the lefthand end (as viewedin Figure l) of hydraulic cylinder 35. The piston rod accordingly movesto the right and rack 92, being attached to the piston rod, pivotspouncing tool assembly 21 in a clockwise movement, as viewed inFigure 1. During the first part of this pivotal movement which, up tothe apex of the hat body, is relatively rapid, roller |41 on arm |46follows the downward slope of cam |49 permitting the pouncing'toolassembly to swingV toward the hat body. When the pouncingr tool reachesthe apex of hat body i5 it goes into contact therewith andas thepouncing pad E42 is reciprocating it begins to remove material` from thesurface of the hat body.. Roller |41 continues down cam |49 as thepouncing tool moves about the hat body and material continues to beremoved as pouncing pad |42 reaches the brim portion of the hat body. Atthis brim portion a short pause or dwell of the pouncing tool iseffected through the operation of metering valve 39 as pointed outhereinabove. Also when the end of the forward feed stroke of thepouncing tool is completed, abutment |68, which moves with piston rod69, has pivoted bell crank |59 to force reversing arm |79 upwardly thusdisengaging the detent (not shown) on lever |51 to permit the plunger invalve 3| to rise. The rise of this plunger effects a reverse flow ofoil, the oil flowing to the right hand side of cylinder 35 as viewed inFigure 1.

Upon reverse flow of oil, piston rod 5E moves to the left-hand side asviewed in Figure 1 thus pivoting it in counterclockwise direction atvarying feed rates which are determined by metering valve 39 as pointedout above. When the pouncing tool has returned to the apex of the hatbody, roller I4? has reached a point on cam |49 where adjusting screw39| in arm |66 abuts against an extension 399 on supporting member 238.Further upward movement of roller |41 on cam |49 will thus cause thepouncing tool to swing away from the hat body. Also at this time, roller|15 on bell crank lever |59 has reached a portion of cam H where furthermovement of cam |14, which moves with piston rod 6G, causes asubstantial opening of metering valve Sil to effect the rapid return ofpouncing tool assembly 21 to its original position spaced from the hatbody.

During the return movement of pouncing tool 2 from the apeX of the hatbody, projections tta on the bottom of supporting stud 64 engagesprojecticns 298m (Figure 2) of bell crank 298 to the left as viewed inFigure 2. Continued pivoting of bell crank 298 causes projections 208i)thereof to contact dog 296 and pivot the dog to raise arm 2 l 2 upwardlythrough linkage provided by rod 2|!) and bell crank lever 2| I. Upwardmovement of arm or rod 2| 2 causes disengagement of clutch 22|) throughlinkage comprising bell crank 2M, rod 2|6, pins 2H, rod 2|8 and fork22|. Also up- Ward movement of rod 2 2 causes rod 224 to break thecircuit in mercoid switch 229, the breaking of this circuit shutting offpouncing tool motor 8?. Hence (referring again to Figure l) when campiece |19 reaches roller 203, reciprocation of the pouncing pad has sosubstantially subsided that contact between cam piece |19 and roller 293effects little, if any, feeding action of pouncing paper as pointed outabove, the feeding of the pouncing paper being effected during theclockwise pivoting, as viewed in Figure 1, of the pouncing toolassembly.

It may now be seen that I have provided a pouncing machine which is wellable to finish a hat body of substantially any size, depth and quality.By providing a varying feed rate of the pouncing tool and by providingadjustments for the effective pressure of the pouncing tool against thehat body, I am able to impart a uniform finish to a number of hat bodiesin a thoroughly efcient and practical manner. Accordingly my finishingmachine is well able to fulfill the abovenoted objects in addition tomany others in a thoroughly efficient and practical manner.

As many possible embodiments may be made of the above invention and asmany changes might be made in the embodiment above set forth, it is tobe understood that all matter hereinbefore set forth, or shown in theaccompanying drawings, is to be interpreted as illustrative and not in alimiting sense.

I claim:

l. In a machine of the character described, in combination, a base, ahat support rotatably mounted on said base, a tool support resilientlymounted on said base and pivotable about said hat support, and a toolreciprocably mounted on said tool support.

2. In a machine of the character described, in combination, a base, ahat support rotatably mounted on said base, a bracket pivotally mountedon said base, a resilient member secured to said bracket, a tool supportsecured to said resilient member, means for pivoting said bracketwhereby said tool support pivots about said hat support, a pouncing toolreciprocably mounted on said tool support, and means for reciprocatingsaid pouncing tool.

3. In a machine of the character described, in combination, a base, ahat support rotatably mounted on said base, a bracket pivotally mountedon said base, a resilient member secured to said bracket, a tool supportsecured to said resilient member, means for pivoting said bracketwhereby said tool support pivots about said hat support, a pouncing toolreciprocably mounted on said tool support, and means for reciprocatingsaid pouncing tool, said means including a plurality of balance rods fordampening vibration resulting from reciprocation of said tool.

4. In a machine of the character described, in combination, a base, ahat support mounted on said base, a pouncing tool reciprocably mountedon said tool support, said tool having an abrasive surface, means forintermittently automatically renewing said abrasive surface, and meansinactive during operative engagement between said tool and said hatsupport for controlling said lastmentioned means.

5. In a machine of the character described, in combination, a base, ahat support mounted on said base, a tool support mounted on said base,means for effecting relative movement between said tool support and saidhat support, a po-uncing tool reciprocably mounted on said tool support,said tool support being stationary with respect to the reciprocation ofsaid tool, said tool having an abrasive surface, and means forautomatically renewing said abrasive surface, said last mentioned meansincluding parts which are set for operation by said relative movement.

6. In a machine of the character described, in combination, a base, ahat support rotatably mounted on said base, a tool support pivotallymounted on said base, means for pivoting said tool support about saidhat support, said tool support being swingable toward and away from saidhat support, resilient means biasing said tool support toward said hatsupport, a spring member associated with said tool support for actingagainst said resilient means, and a pouncing tool reciprocably mountedon said tool support.

'7. A pouncing machine having a tool support, a tool mounted on saidtool support, means for feeding abrasive material over a surface of saidtool, means intermittently operative for actuating said feeding means,and means inactive during pouncing activity of said tool for controllingsaid intermittently operative means.

8. In a machine of the character described, in combination, a rotatablehat support, a tool support operatively associated with said hatsupport, a reciprocable pouncing tool mounted on said tool support,means for reciprocating said pouncing tool, means for feeding abrasivematerial over a surface of said tool, means intermittently operative foractuating said feeding means, and means inactive during pouncingactivity of said tool for controlling said intermittently operativemeans.

9. In a machine of the character described, in combination, a base, ahat support operatively associated with said base,.a tool supportoperatively associated with said base, means for effecting relativemovement between said supports, a tool mounted for reciprocation on saidtool support, means for reciprocating said tool substantiallyrectilinearly, and means for Idampening vibration resulting fromreciprocation of said tool.

10. In a machine of the character described, in combination, a base, ahat support operatively mounted on said base, a bracket pivotallysupported by said base, a pair of spring members secured to saidbracket, a second bracket secured to said spring members, a tool supportsecured to said second bracket, and a tool opera/ tively mounted on saidtool support. y

11. In a machine of the character described, in combination, a base, ahat support rotatably mounted on said base, a tool support pivotallymounted on said base, means for pivoting said tool support about saidhat support, said tool support being swingable toward and away from saidhat support, resilient means biasing said tool support toward said hatsupport, a flat spring member associated with said tool support tovariably resist the bias of said resilient means, means operate on thesurface of a hat mounted on said i support, means for effecting acontinuous pressure of the tool against the hat, means for varying theamount of said pressure at will, means for automatically and variablyrelieving the pressure of said last-mentioned means as said tooltraverses predetermined portions of the hat, and means for varying atWill the effective relieving action of said relieving means.

13. In a machine of the character described, in combination, a rotatablehat support, means for rotating said hat support, a reciprocable tooloperatively associated with said hat support, means for reciprocatingsaid tool, means for traversing said tool about said hat, means forfeeding abrasive material over a surface of said tool, means forrendering ineiective said hat support rotating means and said tooloperating means substantially at the end of the traversing movement ofsaidtool, and means operable sub.- sequent to operation of saidlast-mentioned means to actuate said abrasive feeding means.

14. A pouncing machine having a tool support, a tool mounted on saidsupport, means for reciprocating said tool,V a supply of abrasivematerial for said tool associated with said support, means for feedingsaid abrasive material over said tool, said supply of abrasive materialbeing stationary With respect to the reciprocation of said tool, andmeans for dampening vibration resulting from reciprocation of said tool.

PAUL SCHULTZE.

